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common/boot_fit.c
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// SPDX-License-Identifier: GPL-2.0+ |
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/* * (C) Copyright 2017 * Texas Instruments, <www.ti.com> * * Franklin S Cooper Jr. <fcooper@ti.com> |
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*/ #include <boot_fit.h> #include <common.h> #include <errno.h> #include <image.h> |
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#include <linux/libfdt.h> |
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static int fdt_offset(const void *fit) |
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{ int images, node, fdt_len, fdt_node, fdt_offset; const char *fdt_name; node = fit_find_config_node(fit); if (node < 0) return node; images = fdt_path_offset(fit, FIT_IMAGES_PATH); if (images < 0) { debug("%s: Cannot find /images node: %d ", __func__, images); |
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return -EINVAL; |
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} fdt_name = fdt_getprop(fit, node, FIT_FDT_PROP, &fdt_len); if (!fdt_name) { debug("%s: Cannot find fdt name property: %d ", __func__, fdt_len); return -EINVAL; } fdt_node = fdt_subnode_offset(fit, images, fdt_name); if (fdt_node < 0) { debug("%s: Cannot find fdt node '%s': %d ", __func__, fdt_name, fdt_node); return -EINVAL; } fdt_offset = fdt_getprop_u32(fit, fdt_node, "data-offset"); if (fdt_offset == FDT_ERROR) return -ENOENT; fdt_len = fdt_getprop_u32(fit, fdt_node, "data-size"); if (fdt_len < 0) return fdt_len; return fdt_offset; } |
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void *locate_dtb_in_fit(const void *fit) |
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{ struct image_header *header; int size; int ret; size = fdt_totalsize(fit); size = (size + 3) & ~3; header = (struct image_header *)fit; if (image_get_magic(header) != FDT_MAGIC) { debug("No FIT image appended to U-boot "); return NULL; } ret = fdt_offset(fit); |
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if (ret < 0) |
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return NULL; else return (void *)fit+size+ret; } |